Each time, the results have been less dramatic, in part because users neglect these new features, and in some cases Facebook stages its own retreats.
(Disclosures: I market myself on Facebook; so does Discovery News.)
In this episode, the Menlo Park, Calif., company's proposed changes to its "Statement of Rights and Responsibilities" and "Data Use Policy" look especially undramatic.
As you can see in the "redline" PDFs showing additions and deletions to each document (a practice that other sites should follow), the biggest change would delete a Facebook user's right to vote on privacy-policy changes.
I'm not thrilled about the end of an experiment I applauded at its debut in 2009, but it's been a meaningless exercise so far.
In the first such balloting, 665,654 users voted in the spring of 2009: at best, a third of a percent of the more than 200 million people on Facebook then. Then this summer, 342,632 showed up at the virtual polls out of 900 million-plus users - even farther from the 30 percent turnout that would make a vote binding.